Document Type

Article

Publication Date

2015

Publication Title

LMS Journal of Computation and Mathematics

First Page

675

Last Page

683

DOI

https://doi.org/10.1112/S1461157015000194

Abstract

A prime sieve is an algorithm that finds the primes up to a bound n. We say that a prime sieve is incremental, if it can quickly determine if n+1 is prime after having found all primes up to n. We say a sieve is compact if it uses roughly √n space or less. In this paper, we present two new results.

  • We describe the rolling sieve, a practical, incremental prime sieve that takes O(n log log n) time and O(√n log n) bits of space.
  • We also show how to modify the sieve of Atkin and Bernstein from 2004 to obtain a sieve that is simultaneously sublinear, compact, and incremental.

The second result solves an open problem given by Paul Pritchard in 1994.

Rights

This is a pre-print version of this article. The version of record is available at Cambridge University Press.

NOTE: this version of the article is pending revision and may not reflect the changes made in the final, peer-reviewed version.

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